I have a loop that iterates 3 times. Inside the loop I have a HTML form that has radio buttons. I'm processing the input using PHP. When I echo the form data, its not showing the correct values. Is it a wrong way of processing the data ? Any help is appreciated.
test.php
<?php
for ($i = 1; $i <= 3; $i++) {
?>
<form action = 'test.php' method = 'post'>
<input type="radio" name="num<?php echo $i; ?>" value="one">One<br>
<input type="radio" name="num<?php echo $i; ?>" value="two">Two
</form>
<?php
}
?>
<input type = 'submit' value = 'Go'>
<?php
for ($i = 1; $i <= 3; $i++) {
echo $_POST['num' . $i];
}
?>
Move your form outside of your for loop. You are currently creating three forms with one submit button (which isn't attached to any of them).
try this way
<form action = 'test.php' method = 'post'>
<?php
for ($i = 1; $i <= 3; $i++) {
?>
<input type="radio" name="num<?php echo $i; ?>" value="one">One<br>
<input type="radio" name="num<?php echo $i; ?>" value="two">Two
<?php
}
?>
<input type = 'submit' value = 'Go'>
</form>
<?php
for ($i = 1; $i <= 3; $i++) {
echo $_POST['num' . $i];
}
?>
use following code: Or you can use radiogroup array it is easier than this.
<form action = 'test.php' method = 'post'>
<?php
for ($i = 1; $i <= 3; $i++) {
?>
<input type="radio" name="num<?php echo $i; ?>" value="one">One<br>
<input type="radio" name="num<?php echo $i; ?>" value="two">Two
<?php
}
?>
<input type = 'submit' value = 'Go'>
</form>
<?php
for ($i = 1; $i <= 3; $i++) {
echo $_POST['num' . $i];
}
?>
#Cagy79 added additional submit buttons.. I have revised the code,
<form action ="" method='post'>
<?php
for ($i = 1; $i <= 3; $i++) {
?>
<input type="radio" name="num<?php echo $i; ?>" value="one">One<br>
<input type="radio" name="num<?php echo $i; ?>" value="two">Two
<?php
}
?>
<input type = 'submit' value = 'Go'>
</form>
<?php
for ($i = 1; $i <= 3; $i++) {
echo $_POST['num' . $i];
}
?>
This works. :)
You have 3 forms without a submit button (it needs to be in between the tags). You need to create one form with one submit button like this so all your data is posted to $_POST.
<form method='post'>
<?php
for ($i = 1; $i <= 3; $i++) {
?>
<input type="radio" name="num<?php echo $i; ?>" value="one">One<br>
<input type="radio" name="num<?php echo $i; ?>" value="two">Two
<?php
}
?>
<input type = 'submit' value = 'Go'>
</form>
<?php
for ($i = 1; $i <= 3; $i++) {
echo $_POST['num' . $i];
}
?>
Related
I have a problem, when I click to other -/+ in new row, the old row return initial value. How can I fix it?
<?php
$arr = array(1, 2, 3);
for ($i = 0; $i < 3; $i++) {
$arr[$i] = isset($_POST["item".$i]) ? $_POST['item'.$i] : $arr[$i];
if (isset($_POST['incqty'.$i])) {
$arr[$i] += 1;
}
if (isset($_POST['decqty'.$i])) {
$arr[$i] -= 1;
}
}
?>
<?php
for ($i = 0; $i < 3; $i++) {
?>
<form method='post' action='<?= $_SERVER['PHP_SELF']; ?>'>
<td>
<button name='decqty<?php echo $i; ?>'>-</button>
<input type='text' size='1' name='item<?php echo $i; ?>' value='<?= $arr[$i]; ?>' />
<button name='incqty<?php echo $i; ?>'>+</button>
</td>
</form>
<?php
}
?>
change value when end click other row
i want make a view of array, in the first i need fill length of array for first form (this for how much is show) and then i use that to fill value of array then i show that.
<form method="POST" action="prak_9_1.php">
input length of array <input type="text" name="bilangan">
<input type="submit" value="Hasil">
second code is different file
<?php
$bilangan = $_POST['bilangan'];
$bil = $bilangan;
$array = array();
$n = 0;
?>
<form method="POST" action="prak_9_1.php">
<?php
for ($i=0; $i < $bilangan ; $i++) {
echo "input value of array : <input type='text' name='nilai_".$i."'><br>";
}
?>
<input type="submit" value="Hasil">
</form>
<?php
for ($i=0; $i < $bil ; $i++) {
$array[$n] = $_POST['nilai_'.$i];
$n++;
}
print_r($array);?>
sorry if my english is bad... thanks for ur helps...
first file :
<form method="POST" action="second.php">
input length of array <input type="text" name="bilangan">
<input type="submit" value="Hasil">
</form>
and second file :
<?php
if (isset($_POST['bilangan'])) {
echo '<form method="POST">';
for ($i = 0; $i <= $_POST['bilangan']; $i++) {
echo "input value of array : <input type='text' name='nilai[]'><br>";
}
echo '<input type="submit" value="Hasil">';
echo '</form>';
}
if (isset($_POST['nilai'])) {
print_r($_POST['nilai']);
}
?>
i want to make a multiple choice that if we choose wrong answer, then a text 'incorrect' will be displayed in side of the answer that we choose and if we choose right answer, then a text 'correct' will be displayed in side of the answer that we choose. i using radio button. please help.
this is my index.php:
<?php
include 'koneksi.php';
session_start();
$query = mysql_query("select * from t_soal") or die (mysql_error());
//$_SESSION['soal'] = mysql_fetch_array($query);
$_SESSION['soal'] = array();
$_SESSION['no'] = 1;
$_SESSION['score'] = 0;
$_SESSION['option'] = array();
$_SESSION['jawab'] = array();
$i=0;
while($row = mysql_fetch_assoc($query)){
$_SESSION['soal'][] = $row;
$_SESSION['option'][] = array($_SESSION['soal'][$i]['a'], $_SESSION['soal'][$i]['b'], $_SESSION['soal'][$i]['c'], $_SESSION['soal'][$i]['d']);
$i++;
}
if(isset($_SESSION['soal'])){
header("location:test.php");
}
this is test.php:
<?php
session_start();
$soal = $_SESSION['soal'];
$no = $_SESSION['no'];
if(isset($_POST['next'])){
$_SESSION['jawab'][] = $_POST['option'];
if($_POST['option'] == $soal[$no-2]['kunci']){
$_SESSION['score'] = $_SESSION['score'] + 10;
}
}
if(isset($soal[$no-1])){
?>
<!DOCTYPE html>
<html>
<head>
<title>Latihan Soal</title>
</head>
<body>
Kembali ke soal 1
<form action="" method="POST">
<p>
<?php
echo $no.". "; $_SESSION['no']++;
echo $soal[$no-1]['soal'];
$jawaban = $_SESSION['option'][$no-1];
shuffle($jawaban);
?>
</p>
<?php
for ($i=0; $i < 4; $i++) {
?>
<input type="radio" name="option" value="<?php echo $jawaban[$i]; ?>" required/> <?php echo $jawaban[$i]; ?></br>
<?php
}
?>
<input type="submit" name="next" value="next">
</form>
</body>
</html>
<?php
}else{
header("location:result.php");
}
?>
Assuming all your script is working already, then:
In PHP:
You will need to assign a new parameter on this script:
if($_POST['option'] == $soal[$no-2]['kunci']){
$_SESSION['score'] = $_SESSION['score'] + 10;
}
to
if($_POST['option'] == $soal[$no-2]['kunci']){
$_SESSION['score'] = $_SESSION['score'] + 10;
$_SESSION['correctAnswer'] = $soal[$no-2]['kunci']; // add sthing like this
}
and then, from
for ($i=0; $i < 4; $i++) {
?>
<input type="radio" name="option" value="<?php echo $jawaban[$i]; ?>" required/> <?php echo $jawaban[$i]; ?></br>
<?php
}
to
for ($i=0; $i < 4; $i++) {
?>
<input type="radio" name="option" value="<?php echo $jawaban[$i]; ?>" required/> <?php echo $jawaban[$i]; ?></br>
<?php
echo $jawaban[$i] == $_SESSION['correctAnswer'] ? " correct" : " incorrect";
}
In JS: (much easier)
HTML files will looks like this:
<div class="correctAnswer">
<input type="radio" name="theanswer" id="choice1" />
<label for="choice1">Choice 1</label>
</div>
<div class="incorrectAnswer">
<input type="radio" name="theanswer" id="choice2" />
<label for="choice2">Choice 2</label>
</div>
and the JS will looks like this:
$(".correctAnswer").click(function() {
$(".checks").remove();
$(this).append("<span class='checks'> correct</span>");
});
$(".incorrectAnswer").click(function() {
$(".checks").remove();
$(this).append("<span class='checks'> incorrect</span>");
});
If you want a working example, please check this fiddle link here.
Hope it helps !
I want to create limit input tag with php for loop an get inputs values. My sample code is this:
<?php
$limit = 10;
for ($i=1; $i<=$limit; $i++) { ?>
<input name="<?php echo $i ?>" type="text" /><br>
<?php } ?>
Is my code correct? How can I get input values?
You can try my script.
<?php
$limit = 10;
?>
<form method="post">
<?php
for ($i = 1; $i <= $limit; $i++) {
?>
<input name="anything[]" type="text" /><br>
<?php } ?>
<input type="hidden" name="op" value="sent" />
<input type="submit" value="submit" />
</form>
<?php
if (!empty($_POST["op"])) {
for ($i = 1; $i <= $limit; $i++) {
if (strlen($_POST["anything"][$i]) !== 0) {
?>
<p>The value of the <?php echo $i; ?> text field is: <?php echo $_POST["anything"][$i]; ?>
<?php
} else {
?>
<p><?php echo $i; ?> was not set.</p>
<?php
}
}
}
Looks alright but I would use an array as the input name. For example:
<?php
$limit = 10;
for ($i=1; $i<=$limit; $i++) {
?>
<input name="number[<?php echo $i; ?>]" type="text" /><br>
<?php
}
?>
That way in the back end you can just loop through the number array like so.
foreach ($_POST['number'] as $key => $value) {
// Do stuff
}
Your code should render 10 html input fields with name 1, 2, 3, ... 10 correctly
To get input values, wrap your input fields in a form element with an action pointing to the php script in which you want to read the values (e.g. action="myscript.php").
(You should add a input type="submit" to have a way to submit the form. I assume you know HTML good enough to create a simple form.)
The script invoked by submitting the form (e.g. myscript.php) will now be able to read the values using the $_GET array. See http://php.net/manual/de/reserved.variables.get.php
You could print the values like so:
<?php
for($i=1;$i<=10; $i++) {
echo $i . ' : '. $_GET[$i];
}
?>
Edit: As #David Jones mentioned it would be better to use an array as input name
This is my code :
NON WORKING CODE
<div class="myform">
<form action="blah.php" method="post">
<input type="hidden" value="<?php json_encode($myarr); ?>
</form>
</div>
<?php
$myarr = array("foo");
for ($i = 1; $i <= 10; $i++) {
array_push($myarr,$i);
print "<div class='mylist'>$i</div>";
}
?>
</div>
WORKING CODE
<div class="container">
<?php
$myarr = array("foo");
for ($i = 1; $i <= 10; $i++) {
array_push($myarr,$i);
print "<div class='mylist'>$i</div>";
}
?>
<div class="myform">
<form action="blah.php" method="post">
<input type="hidden" value="<?php json_encode($myarr); ?>
</form>
</div>
</div>
Now, this is more or less the situation.I cannot alter the position of the div tags as my whole website layout is based on it.How can I make sure the first one works because that ordering of the div tags keeps my web design and everything intact.
NOTE: Please don't suggest me to use jQuery or Javascript.I do not wish to use them unless ther is no other way out. :(
Thanks
With out executing of foreach you can't get that variable for encode.
<?php
$myarr = array("foo");
for ($i = 1; $i <= 10; $i++) {
array_push($myarr,$i);
}
?>
<div class="myform">
<form action="blah.php" method="post">
<input type="hidden" value="<?php echo json_encode($myarr); ?>
</form></div>
<div class="myform">
<form action="blah.php" method="post">
<input type="hidden" value="<?php echo json_encode($myarr); ?>
</form></div>
for ($i = 1; $i <= 10; $i++) {
print "<div class='mylist'>$i</div>";
}
</div>
<?php
$myarr = array("foo");
<div class="myform">
<form action="blah.php" method="post">
<input type="hidden" value="<?php json_encode($myarr); ?>
</form>
</div>
for ($i = 1; $i <= 10; $i++) {
array_push($myarr,$i);
print "<div class='mylist'>$i</div>";
}
</div>
?>
Try this maybe. Hope I understood you...